If @sjrcpa is not angry about her advice being challenged on how to avoid software turning you into a data entry clerk, I will remain as calm as she when someone can't explain why none of that data is sent to IRS by millions of taxpayers anyway.  The absence of an example of how incomplete information-return data led to a CP2000 is not evidence that maybe someone made a mistake inputting amounts that had nothing to do with dropdown boxes.  It just makes us wonder.